Method and apparatus for packaging metallic leaf



L. M. HARWOOD. METHOD AND APPARATUS FORPACK AGING METALLIC LEAF.

APPLICATION FILED MAY 1. 1919 1,360,741., PatentedN0v.30,1920.

TOR

UNITED STATES,

PATENT, OFFICE.

LEON MARTIN HARWOOD, OF SPRINGFIELD, MASSACHUSETTS.

METHOD AND APPARATUS FOR PACKAGING METALLIC LEAF.

Application filed. May 1, 1919. Serial No. 294,016.

1d count of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Methods and Apparatus for Packaging Metallic Leaf, of which the following is a specification. f r

This invention rela es to an improved method of packaging metallic leaf and to improvements in apparatus for use in carrying out the method.

According to prior practice, the leaf is suitably applied to a supporting strip, such as paper, and such strip with the leaf there on, is wound up into apreliminary roll. In order to obtain rolls of smaller width than the preliminary roll, such roll is divided by suitable cutting means, which sever both leaf and supporting strip along the same line. That is, with a roll out from a preliminary roll, as described, there is at least one, and frequently two, edges of the leaf which coincide with an edge or edges of the supporting strip. lVhere theedges ofthe leaf and supporting strip coincide, there is an undesir-' able tendency for theleaf and strip to adhere to one another along the edges, the edges of the leaf are not protected as desired, and the practice is therefore undesirable. This invention is concerned, among other things with the elimination of thedisadvantages enumerated.

According to one feature of the invention, the leaf is placed upon a receiving table having'two or more separable sections and is divided into two or more parts. The parts are then spaced from one another by separating said sections, and then a supporting strip is applied to the cut and separated parts and, the latter are positioned on-the strip in the same relative relation as they were upon the table.

According to another feature of the invention,the leaf is cut intotwo ormore parts which are separated as described, and the supporting strip is applied so that the parts are spaced thereon as positioned upon the table, whereby the strip may be severed along a line or lines parallel to the edges of the strip and between the out parts of the leaf leaving the cut edges spaced from the edges of the supporting strip.

ecording to a further feature of the invention, the leaf is out and transferred to the Specification of Letters Patent.

two or more leaf supporting sections 11 Patented Nov. 30, 1920.

strip is then wound into roll form and means are provided to sever the supporting strip between the out parts of the leaf during the winding operation. v

According to; afurther feature of the insupporting strip, as just described, and such vention, I provide a winding arbor, upon which two or more tubular cores may be placed, and between each pair of cores I provide a cutting device, whereby the supportingstrip may be cut during the wind ing operation and the cut rolls may be removed by reason of the separate tubular cores provided.

According to a further feature of the invention, I provide a receiving and cutting table of the class described which is mounted upon a rollway for travel to and from a pressure roll, about which a supporting strip travels, whereby the cut leaf sections on. the table may be conveniently trans-' ferred to the supporting strip.

Other features and advantages will appear in the following description and in the illustrative embodiment of the invention in the accompanying drawings; in which- Figure 1 is an elevational view of the improved apparatus;

Fig. 2 is a sectional View thereof taken on the line 22 of Fig. 1;

Fig. 3 is a perspective view of the receiving table; s

Fig. i is a similar view showing the separable sections thereof spread to space the cut edges of the leaf;

Fig. 5 is a longitudinal. section of the winding arbor showing the tubular cores and strip cutting means;

Fig. 6 is a cross sectional View of the separable table sections; and p v Fig. 7 is a fragmentary plan view showing the cut supporting strip with arrange ment of the cut leaf sections thereon. Referring to these drawings and particularly to Figs. 3 and 4; a receiving table 10 is provided upon'which the metallic leaf Z to be cut may be placed. ;This table includes 7 which may be moved into close adjacency, to support leaf Z duringthe cutting operation and later separated to space the cut edges of the cut leaf sections Z, all as clearly indicated in Fig. 4. As shown, the table 10 is recessed, as at 12, to receive the separable sections 11 andsuch sections are held to the table by their own weight. The recess 12 is wide enough to permit the sections 11 to be spread apart to space the leaf sections and, where as shown a longitudinal aswell:

as a lateral spacing of the leaf sections Z is desired, otherfsections 11 are-provided and the recess 12 is made long enough to permit the sections 11 to be separatedlongitudi-' nally of the table. Obviously, any desired number of sections 11 may be provided as desired depending on the number of lateral and longitudinal cuts (either or both) which are to be made.

The cutting of the leaf while supported 1 by the sections l l'of table y accom plishedin any desired manner. Anexample ofone cutting device suitable for J th s I purpose is shown in my prior Patent No.

, 1,156,224, granted October 12, 1915'. In connectionwith the cutting. operation, the I sections 11 may be slightly spaced to allow the cutter or cutters to pass therebetween. Preferably, however, the sections 11 abut, as shown in Fig. 6, aud t recess 13, is provided in their side edges adjacent the top of the sections for the purpose of receiving the cutter. The leaf after being cut and separated,

may be transferred to the supporting strip in any desired manner. Where, however, the cut and spaced leaf sections are to be packaged in the roll form, the illustrated apparatus is particularly advantageous.

, *Such apparatus involves a supply roll a of the supportingistrip and the roll 1" is suitably mounted by means of an arbor a in a pair of spaced standards 7" which are' supported by a bed 6. Also mounted in frames 7 by means of a shaft (Z is apressure 5 roll "12, preferably provided: with an outer peripheral layer a of rubber or the like. The supporting strip 8 is led from roll 1" to and around the pressure roll 77 and the end i'sthen carried to a winding mechanism. The latter includes an arbor 14: (Fig. 5)

which has fixed on one end'a flange 15. The

other end of arbor 141 is threaded as at 16 to -rece1ve an interiorly threaded flange 17 Upon arbor 14 several tubular cores 18' may be placed and between the adjacentends of end ofarbor 14. In the other arm 9, a shaft 22' is rota'tably and sli'dably mounted. :Fixed on'shaft 22' is a flange23 having two spaced pins-:24 to; fit intothe other end of arbor 14; for'anoperable driving engagement. A

- spring '25 tends to-holdflange 23 in the illustratedposition and acrank hand-le 23 on shaft 22 provides means for rotating the arbor. By pulling handle 26 outwardly, the

pins 24 may be withdrawn from arbor 14 to permit its removal and, upon removal of leather or the like, maybe mounted, by

means of two arms '2' pivoted to frames 7", to bear uponftherfouter periphery of roll 7*. Such pad functions as a brake to prevent undue rotation of roll 1 Other formsof roll gold machines may be used, as desired, and

that described .is given'merely by way of illustrative example. r

lVhen' the leaf is to be packaged in roll form, the receiving and cuttingtable 10 is provided with wheels, as 27, and mounted for travel along a rollway 28. Such rollway is pivoted 'at 2 9 to bed'A and at the other end is urged upwardly by a spring 30, which is disposed between the rollway and bedA, A stop 31, preferably adjustable'as indicatedin Fig. 1, limits the up ward travelof the rollway 28 under the action of spring 30 and an abutment 32 on the rollway limits-the travel oftable 10 in one direction. The stop 31 is so adjusted as to: hold the top of the leaf supporting sections at a level slightly higher than the lowermost part of roll 29 so that, as table, 10 is moved to carry the sectionsll in under the pressure roll, the spring 30 is compressed to yieldingly force the sections against the pressure roll.

In operat on, with thejtable 10 positioned as illustratedin Fig. 1 and the sections 11 positioned as illustrated in Fig. 3, the leaf is laid upon the sections and out either laterally or longitudinally or both by suitable means into the desired number of sections Z; The sections 11are then separated and this results in a spacing of the cutedges of the leaf sections Z either lateraly or longitudinally or both, as illustrated. The table 10 is then moved along the rollway 28 toward'the pressure roll until the upper surface of the forwardsections' 11 are engaged by the roll 7). Then, by turning the crank handle 26,"the strip 8 is wound up on cores 18 and thepressure roll isturne'd which, in

turn, imparts movement to the table 10. As tle table 10 movesin under roll p,-'the leaf sections Z adhere to the strip 8. After the leaf" sections. Z have been, transferred to strip '8, the rotation of arbor leis stopped and the rollway 28j is depressed to withdraw the table fromthe pressure roll, whereupon th ta le. j-returned to the illustrat d sition, as by gravity action. Succeeding leaf sections Z are cut, spaced and transferred to strip 8 in a like manner.. As the strip 8 is wound up on its cores 18, the cutter 19 severs the strip along a line 9 (Fig. 7)

which lies between the cut .and separated edges of the leaf. Therefore, after a roll of requisite diameter has been wound. up, the arbor 14- may be removed as described and cores l8 extracted'therefrom leaving two or more separate roll packages in each 7 which consists in placing the leaf upon a member having two or more separable sections, in cutting the leaf while supported by said sections, in then separating the latter to space the cut edges of the leaf, and in transferring the cut portions of the leaf to a supporting strip while the cut edges of the leaf are maintained in separated relation.

2. A method of packaging metallic leaf, which consists in placing the leaf upon a member having two or more separable sections, in cutting the leaf while supported by said sections, in then separating the latter to space the cut edges of the leaf, and in transferring the cut portions of the leaf to a supporting strip while the cut edges of the leaf are maintained in separated relation, and in then cutting the supporting strip along a line intermediate the cut edges of the leaf thereon.

3. A method of packaging metallicleaf which consists in placing the leaf upon a 7 similar to their 'member prlor to the cutting operation.

member having two or more separable sections, in cutting the leaf while supported by said sections into the widths required, in then separating the sections to space the cut edges of the leaf, and in then winding one or more widths with a supporting strip into roll form.

4:. A method of packaging metallic leaf which consists in placing the leaf upon a member having two or more separable sections, in cutting the leaf while supported by saidsections into the Widths required, in dividing the widths into the desired lengths, in then separating the sections to'space the out edges of the leaf, and in then winding one or more widths with a supporting strip into roll form, while the cut edges of the leaf are maintained in separated relation upon the supporting strip in formation placement upon the cutting 5. In a machine for packaging metallic leaf in roll form, means for winding up the supporting strip including a winding arbor, at least two cores carried by the arbor and a cutter between the cores, a pressure roll engageable with the supporting strip, and means to feed metallic leaf in laterally spaced sections to the strip and pressure roll, whereby the leaf sections are trans ferred to and located on the strip in laterally spaced relation, and the supporting strip is out between the leaf sections.

6. A method of packaging metallic leaf, which consists in laying the leaf upon a cutting table having separable sections, in cutting the leaf into sections, in separating the sections of the table to space the cut edges of the leaf, and in thereafter applying to the cut and spaced leaf sections a suitable supporting member.

LEON MARTIN HARWO OD. 

